Home / 6,488.84-8,953.26-4,130.12

Finding the Fourth Proportional to 6,488.84, 8,953.26 and 4,130.12

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Solution

The fourth proportional to 6,488.84, 8,953.26 and 4,130.12 is: 5,698.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,488.84 : 8,953.26 = 4,130.12 : x
  2. Step 2: Convert to fraction form
    6,488.84/8,953.26 = 4,130.12/x
  3. Step 3: Cross multiply
    6,488.84x = 8,953.26 × 4,130.12
  4. Step 4: Simplify right side
    6,488.84x = 36,978,038.19
  5. Step 5: Solve for x
    x = 36,978,038.19/6,488.84
  6. Step 6: Final answer
    x = 5,698.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.